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Impact of Thermal Dissipation on the Lighting Performance and Useful Life of LED Luminaires Applied to Urban Lighting: A Case Study

Author

Listed:
  • Juan de Dios Unión-Sánchez

    (Centre for Advanced Studies in Energy and Environment, University of Jaén, 23071 Jaén, Spain)

  • Manuel Jesús Hermoso-Orzáez

    (Centre for Advanced Studies in Energy and Environment, University of Jaén, 23071 Jaén, Spain
    Department of Graphic Engineering, Design and Projects, University of Jaén, 23071 Jaén, Spain)

  • Manuel Jesús Hervás-Pulido

    (Department of Graphic Engineering, Design and Projects, University of Jaén, 23071 Jaén, Spain)

  • Blas Ogáyar-Fernández

    (Centre for Advanced Studies in Energy and Environment, University of Jaén, 23071 Jaén, Spain
    Department of Electrical Engineering, University of Jaén, 23071 Jaén, Spain)

Abstract

Currently, LED technology is an established form of lighting in our cities and homes. Its lighting performance, durability, energy efficiency and light, together with the economic savings that its use implies, are displacing other classic forms of lighting. However, some problems associated with the durability of the equipment related to the problems of thermal dissipation and high temperature have begun to be detected, which end up affecting their luminous intensity and the useful life. There are many studies that show a direct relationship between the low quality of LED lighting and the aging of the equipment or its overheating, observing the depreciation of the intensity of the light and the visual chromaticity performance that can affect the health of users by altering circadian rhythms. On the other hand, the shortened useful life of the luminaires due to thermal stress has a direct impact on the LCA (Life Cycle Analysis) and its environmental impact, which indirectly affects human health. The purpose of this article is to compare the results previously obtained, at different contour temperatures, by theoretical thermal simulation of the 3D model of LED street lighting luminaires through the ANSYS Fluent simulation software. Contrasting these results with the practical results obtained with a thermal imaging camera, the study shows how the phenomenon of thermal dissipation plays a fundamental role in the lighting performance of LED technology. The parameter studied in this work is junction temperature (T j ), and how it can be used to predict the luminous properties in the design phase of luminaires in order to increase their useful life.

Suggested Citation

  • Juan de Dios Unión-Sánchez & Manuel Jesús Hermoso-Orzáez & Manuel Jesús Hervás-Pulido & Blas Ogáyar-Fernández, 2022. "Impact of Thermal Dissipation on the Lighting Performance and Useful Life of LED Luminaires Applied to Urban Lighting: A Case Study," IJERPH, MDPI, vol. 19(2), pages 1-23, January.
  • Handle: RePEc:gam:jijerp:v:19:y:2022:i:2:p:752-:d:721607
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    References listed on IDEAS

    as
    1. Manuel Jesús Hermoso-Orzáez & José Adolfo Lozano-Miralles & Rafael Lopez-Garcia & Paulo Brito, 2019. "Environmental Criteria for Assessing the Competitiveness of Public Tenders with the Replacement of Large-Scale LEDs in the Outdoor Lighting of Cities as a Key Element for Sustainable Development: Case," Sustainability, MDPI, vol. 11(21), pages 1-26, October.
    2. Ulrich Dettweiler & Christoph Becker & Bjørn H. Auestad & Perikles Simon & Peter Kirsch, 2017. "Stress in School. Some Empirical Hints on the Circadian Cortisol Rhythm of Children in Outdoor and Indoor Classes," IJERPH, MDPI, vol. 14(5), pages 1-14, April.
    3. Alfonso Gago-Calderón & Manuel Jesús Hermoso-Orzáez & Jose Ramon De Andres-Diaz & Guillermo Redrado-Salvatierra, 2018. "Evaluation of Uniformity and Glare Improvement with Low Energy Efficiency Losses in Street Lighting LED Luminaires Using Laser-Sintered Polyamide-Based Diffuse Covers," Energies, MDPI, vol. 11(4), pages 1-17, April.
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